Solar photothermal concentrated water evaporation device and process

Abstract

The application belongs to the technical field of concentrated water treatment, and discloses a solar light-heat concentrated water evaporation device, which comprises a salt collection bin assembly, a dynamic light-heat evaporation assembly is arranged on the top of the salt collection bin assembly, and concentrated water is transmitted in the salt collection bin assembly; the concentrated water outside the device is sprayed on the top of the conveying belt through a concentrated water conveying pipe and a concentrated water outlet flat nozzle; the water in the spraying layer is siphoned to the lower end face of a hydrophilic graphene polyvinyl alcohol composite film through wiping of a water-absorbing sponge, a water-absorbing sponge strip and a water-absorbing sponge ring; the solar energy is converted into light heat through the hydrophilic graphene polyvinyl alcohol composite film; and the heat generated by the hydrophilic graphene polyvinyl alcohol composite film evaporates the water on the water-absorbing sponge ring; the bottom of the salt collection bin assembly is vibrated and provided with a salt splitting arm assembly; the salt after evaporation is vibrated and split through vibration of the salt splitting arm assembly, so that the salt is split, falls off and is collected.

Description

Technical Field

[0001] This invention belongs to the field of concentrated water treatment technology, specifically relating to a solar thermal concentrated water evaporation device and process. Background Technology

[0002] With the increasing severity of global water scarcity, seawater desalination, industrial wastewater treatment, and the resource utilization of high-salinity concentrates have become research hotspots. Concentrates refer to wastewater with high salinity, commonly found in seawater desalination byproducts and wastewater treatment processes in industries such as chemical, power, and metallurgy. Traditional concentrate treatment technologies mainly include evaporation crystallization, reverse osmosis, electrodialysis, and multi-effect evaporation, but these methods generally suffer from the following problems:

[0003] High energy consumption: Technologies such as microwave heating and steam drying rely on large amounts of electricity or fossil fuels, resulting in high operating costs;

[0004] The equipment is complex: the system has a large structure, occupies a large area, and requires a high initial investment;

[0005] Prone to scaling and clogging: In high-salt environments, equipment is prone to salt crystallization and deposition, affecting heat transfer efficiency and service life;

[0006] Low resource recovery rate: Traditional methods often fail to achieve efficient separation and recovery of salt, resulting in resource waste.

[0007] Solar thermal evaporation technology has shown broad application prospects in the field of concentrate treatment in recent years due to its advantages such as being green, low-energy, and sustainable. This technology utilizes photothermal materials to directly convert solar energy into heat energy, driving water evaporation and achieving concentrate reduction and salt recovery. However, existing solar evaporation devices still suffer from problems such as low photothermal conversion efficiency, difficulty in salt collection, and poor system stability, which limit their large-scale application. Summary of the Invention

[0008] To address the problems mentioned in the background section, this invention provides a solar thermal concentrated water evaporation device and process, characterized by low energy consumption.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a solar thermal concentrated water evaporation device, comprising a salt collection chamber assembly, a dynamic solar thermal evaporation assembly at the top of the salt collection chamber assembly, concentrated water being transported within the salt collection chamber assembly, and the concentrated water transported within the salt collection chamber assembly being evaporated by the heating effect of the dynamic solar thermal evaporation assembly; a salt splitting arm assembly being vibratingly installed at the bottom of the salt collection chamber assembly, and the evaporated salt being vibrated and split by the vibration of the salt splitting arm assembly; tensioning arm assemblies being installed on both sides of the salt splitting arm assembly; and an auxiliary air supply heating assembly being installed at one end of the salt collection chamber assembly, and the external air being heated by heat exchange through the auxiliary air supply heating assembly.

[0010] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the salt collection chamber assembly includes an evaporation collection chamber. A first drive roller and a second drive roller are rotatably mounted at both ends inside the evaporation collection chamber. Conveyor belts are fitted onto the first and second drive rollers. An air supply nozzle, a concentrated water outlet nozzle, and a top chamber are fixedly mounted on the top of the evaporation collection chamber. A wiping and absorbing sponge is installed inside the top chamber. An absorbent sponge strip and an absorbent sponge pad are mounted on the top of the wiping and absorbing sponge. A concentrated water supply pipe is mounted on the concentrated water outlet nozzle. An air supply straight pipe is mounted on the air supply nozzle. A first drive motor, a first vertical groove, and a second vertical groove are mounted on one side of the evaporation collection chamber. A first sliding rod is fixedly mounted on the outside of the first vertical groove, and a tension spring is fitted onto the first sliding rod. A second sliding rod is fixedly mounted on the outside of the second vertical groove, and a push spring is fitted onto the second sliding rod. A discharge chamber is fixedly mounted at the bottom of the evaporation collection chamber, and a support base is mounted on one side of the discharge chamber.

[0011] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the dynamic solar thermal evaporation component includes a ring frame. A hydrophilic graphene-polyvinyl alcohol composite film is disposed on the top of the ring frame, and the bottom of the ring frame is rotatably mounted on a U-shaped frame via a central shaft and bearings. A second drive motor is fixedly disposed at one end of the U-shaped frame, and the bottom of the U-shaped frame is rotatably mounted on a U-shaped bottom end frame via a bottom shaft and bearings. A driven gear is fixedly disposed on the outer wall of the bottom shaft, and a third drive motor is fixedly disposed on one side of the U-shaped bottom end frame. A drive gear is disposed on the output shaft of the third drive motor.

[0012] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the salt splitting arm assembly includes a splitting horizontal arm and an L-shaped vertical arm. A fourth drive motor is provided on the L-shaped vertical arm, and a cam is provided on the output shaft of the fourth drive motor. A first sealing plate and a displacement slider are fixedly provided on the inner side of the splitting horizontal arm. A splitting roller is rotatably provided on the inner side of the displacement slider. Splitting end holes are provided at both ends of the splitting horizontal arm.

[0013] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the tensioning arm assembly includes a tensioning slider, a second sealing plate is fixedly disposed on the inner side of the tensioning slider, a tensioning sliding hole is opened on the tensioning slider, and a tensioning roller is rotatably disposed on the second sealing plate.

[0014] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the auxiliary air supply heating component includes a water heater base, on which a solar water heater, a water pump, a heat exchanger, and an air pump are installed, with the air pump and water pump located on both sides of the heat exchanger.

[0015] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the bottom of the U-shaped bottom frame is fixedly installed on the top of the top chamber, the water-absorbing sponge pad ring is installed on the bottom surface of the hydrophilic graphene polyvinyl alcohol composite film, the driving gear meshes with the driven gear, the concentrated water delivery pipe is connected to an external concentrated water delivery device through a pipe, and the bottom of the wiping water-absorbing sponge is installed on the top of the conveyor belt.

[0016] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the pyrolysis crossarm slides on the first slide rod through the pyrolysis end hole, the top of the tension spring is fixedly mounted on the pyrolysis crossarm, and the bottom of the tension spring is fixedly mounted on the outer wall of the evaporation collection chamber, the pyrolysis roller is mounted above the conveyor belt, the displacement slider slides in the first vertical groove, and the pyrolysis crossarm is tensioned by the tension spring, and the bottom end face of the pyrolysis crossarm abuts against the cam.

[0017] The tensioning slider slides on the second slide rod through the tensioning sliding hole. The top of the push spring is fixedly installed at the bottom of the tensioning slider, and the bottom of the push spring is fixedly installed on the outer wall of the evaporation collection chamber. The end shaft of the tensioning roller slides in the second vertical groove, and the tensioning roller is installed below the conveyor belt. The bottom of the L-shaped vertical arm is fixedly installed on the outer wall of the evaporation collection chamber.

[0018] In a preferred embodiment of a solar thermal concentrated water evaporation device and process, the water heater base is fixedly connected to the support base, the water pump sends the hot water in the solar water heater into the heat exchanger through a pipe, the air pump sends external air into the heat exchanger through a pipe, the air outlet pipe of the heat exchanger is connected to the air supply pipe through a pipe, and the water outlet pipe of the heat exchanger is connected to the water inlet pipe of the solar water heater through a pipe.

[0019] A solar thermal concentrated water evaporation process includes the following steps:

[0020] S1. External concentrated water is sprayed onto the top of the conveyor belt through the concentrated water supply pipe and the concentrated water outlet flat nozzle, forming a concentrated water spray layer to be evaporated. The spray layer is evenly applied to the conveyor belt by wiping with absorbent sponge. At the same time, the water in the spray layer is siphoned onto the lower end surface of the hydrophilic graphene polyvinyl alcohol composite film by wiping with absorbent sponge, absorbent sponge strip and absorbent sponge pad ring.

[0021] S2. Solar energy is converted into photothermal energy through a hydrophilic graphene polyvinyl alcohol composite film. The heat generated by the hydrophilic graphene polyvinyl alcohol composite film evaporates the moisture on the water-absorbing sponge ring.

[0022] S3. Through heat exchanger, the hot water in the solar water heater and the external wind are exchanged for heat, and the external wind is heated. The heated air is sent into the air supply nozzle through the air supply straight pipe. The air supply nozzle sprays hot air onto the top of the conveyor belt, which accelerates the evaporation of the concentrated water spray layer on the top of the conveyor belt, so that the salt in the concentrated water is separated onto the conveyor belt.

[0023] S4. By vibrating the salt splitting arm assembly, the salt precipitated on the bottom of the conveyor belt is broken down by vibration, causing the salt precipitated on the bottom of the conveyor belt to fall into the feeding bin, thereby collecting the salt.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. In this invention, concentrated water from the outside is sprayed onto the top of a conveyor belt through a concentrated water supply pipe and a concentrated water outlet nozzle. The conveyor belt is then driven by a second drive roller to transport the concentrated water within the evaporation collection chamber. During this process, the concentrated water spray layer on top of the conveyor belt is transported within the evaporation collection chamber. This invention uses a wiping absorbent sponge to wipe the top of the conveyor belt, evenly coating the spray layer onto the conveyor belt. Simultaneously, the wiping absorbent sponge, absorbent sponge strip, and absorbent sponge pad ring draw water from the spray layer onto the lower surface of the hydrophilic graphene polyvinyl alcohol composite film. The hydrophilic graphene polyvinyl alcohol composite film converts solar energy into photothermal energy, and the heat generated by the film evaporates the water on the absorbent sponge pad ring.

[0026] 2. The salt collection chamber assembly of this invention is equipped with an auxiliary air supply heating component at one end. The auxiliary air supply heating component heats the external air through heat exchange. In actual use, the hot water in the solar water heater and the external air are exchanged through the heat exchanger to heat the external air. The heated air is then sent into the air supply nozzle through the air supply straight pipe. The air supply nozzle sprays the hot air onto the top of the conveyor belt, accelerating the evaporation of the concentrated water spray layer on the top of the conveyor belt. This causes the salt in the concentrated water to be separated onto the conveyor belt, thereby achieving further utilization of solar energy.

[0027] 3. The salt collection bin assembly of the present invention is equipped with a salt splitting arm assembly at the bottom. The salt splitting arm assembly vibrates and splits the evaporated salt. The fourth drive motor drives the cam to rotate, and the cam continuously abuts the splitting arm. At this time, the splitting arm drives the splitting roller to continuously vibrate and hit the conveyor belt. The salt layer precipitated on the conveyor belt will then split and fall into the feeding bin. In this way, the salt is split, falls and is collected. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is a perspective view of the salt collection chamber assembly of the present invention;

[0030] Figure 3 This is a cross-sectional view of the salt collection chamber assembly of the present invention;

[0031] Figure 4 This is a perspective view of the dynamic photothermal evaporation component of the present invention;

[0032] Figure 5 This is a perspective view of the salt splitting arm assembly of the present invention;

[0033] Figure 6 This is a perspective view of the tensioning arm assembly of the present invention;

[0034] Figure 7 This is a perspective view of the auxiliary air supply heating component of the present invention.

[0035] In the diagram: 100, Salt collection chamber assembly; 101, Evaporation collection chamber; 102, Air supply nozzle; 103, Absorbent sponge strip; 104, Absorbent sponge pad ring; 105, Concentrate water supply pipe; 106, Concentrate water outlet nozzle; 107, First drive motor; 108, Support base; 109, Feeding bin; 110, Tension spring; 111, First slide bar; 112, Push spring; 113, Second slide bar; 114, Top bin; 115, Straight air supply pipe; 116, Wiping absorbent sponge; 117, First drive roller; 118, Second drive roller; 119, First vertical trough; 120, Second vertical trough; 121, Conveyor belt; 200, Dynamic photothermal evaporation assembly; 201, Hydrophilic graphene polyvinyl alcohol composite film; 202, Ring frame; 203, Second... Drive motor; 204, central shaft; 205, U-shaped frame; 206, bottom shaft; 207, driven gear; 208, U-shaped bottom frame; 209, third drive motor; 210, drive gear; 300, salt splitting arm assembly; 301, splitting end hole; 302, splitting cross arm; 303, fourth drive motor; 304, L-shaped vertical arm; 305, cam; 306, splitting roller; 307, displacement slider; 308, first sealing plate; 400, tensioning arm assembly; 401, tensioning slider; 402, tensioning sliding hole; 403, second sealing plate; 404, tensioning roller; 500, auxiliary air supply heating assembly; 501, solar water heater; 502, water pump; 503, heat exchanger; 504, water heater base; 505, air pump. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-7 As shown, the present invention provides a solar thermal concentrated water evaporation device, including a salt collection chamber assembly 100. A dynamic solar thermal evaporation assembly 200 is provided on the top of the salt collection chamber assembly 100. Concentrated water is transported within the salt collection chamber assembly 100. The concentrated water transported within the salt collection chamber assembly 100 is evaporated by the heating of the dynamic solar thermal evaporation assembly 200. A salt splitting arm assembly 300 is vibratingly provided at the bottom of the salt collection chamber assembly 100. The salt splitting arm assembly 300 vibrates and splits the evaporated salt. Tensioning arm assemblies 400 are provided on both sides of the salt splitting arm assembly 300. An auxiliary air supply heating assembly 500 is provided at one end of the salt collection chamber assembly 100. The auxiliary air supply heating assembly 500 heats the external air through heat exchange.

[0038] In a preferred embodiment, please refer to Figure 2 and Figure 3 The salt collection chamber assembly 100 includes an evaporation collection chamber 101. A first drive roller 117 and a second drive roller 118 are rotatably mounted at both ends inside the evaporation collection chamber 101. A conveyor belt 121 is fitted onto the first drive roller 117 and the second drive roller 118. An air supply nozzle 102, a concentrated water outlet nozzle 106, and a top chamber 114 are fixedly mounted on the top of the evaporation collection chamber 101. A wiping and absorbing sponge 116 is installed inside the top chamber 114. An absorbent sponge strip 103 and an absorbent sponge pad ring 104 are mounted on the top of the wiping and absorbing sponge 116. The concentrated water outlet nozzle 106 is equipped with… The evaporation collection chamber 101 is equipped with a concentrated water supply pipe 105 and an air supply flat nozzle 102 with an air supply straight pipe 115. A first drive motor 107, a first vertical groove 119 and a second vertical groove 120 are provided on one side of the evaporation collection chamber 101. A first slide rod 111 is fixedly provided on the outside of the first vertical groove 119 and a tension spring 110 is sleeved on the first slide rod 111. A second slide rod 113 is fixedly provided on the outside of the second vertical groove 120 and a push spring 112 is sleeved on the second slide rod 113. A discharge bin 109 is fixedly provided at the bottom of the evaporation collection chamber 101 and a support base 108 is provided on one side of the discharge bin 109.

[0039] In this embodiment, the absorbent sponge pad ring 104 is disposed on the bottom surface of the hydrophilic graphene polyvinyl alcohol composite film 201.

[0040] In this embodiment, the concentrate delivery pipe 105 is connected to an external concentrate delivery device via a pipe.

[0041] In this embodiment, the bottom of the wiping absorbent sponge 116 is positioned on top of the conveyor belt 121.

[0042] In a preferred embodiment, please refer to Figure 4 The dynamic photothermal evaporation assembly 200 includes a ring frame 202. A hydrophilic graphene-polyvinyl alcohol composite film 201 is disposed on the top of the ring frame 202, and the bottom of the ring frame 202 is rotatably mounted on a U-shaped frame 205 via a central shaft 204 and a bearing. A second drive motor 203 is fixedly disposed at one end of the U-shaped frame 205, and the bottom of the U-shaped frame 205 is rotatably mounted on a U-shaped bottom end frame 208 via a bottom shaft 206 and a bearing. A driven gear 207 is fixedly disposed on the outer wall of the bottom shaft 206, and a third drive motor 209 is fixedly disposed on one side of the U-shaped bottom end frame 208. A drive gear 210 is disposed on the output shaft of the third drive motor 209.

[0043] In this embodiment, the bottom of the U-shaped bottom frame 208 is fixedly installed on the top of the top compartment 114.

[0044] In this embodiment, the drive gear 210 meshes with the driven gear 207.

[0045] In a preferred embodiment, please refer to Figure 5 The salt splitting arm assembly 300 includes a splitting horizontal arm 302 and an L-shaped vertical arm 304. A fourth drive motor 303 is provided on the L-shaped vertical arm 304. A cam 305 is provided on the output shaft of the fourth drive motor 303. A first sealing plate 308 and a displacement slider 307 are fixedly provided on the inner side of the splitting horizontal arm 302. A splitting roller 306 is rotatably provided on the inner side of the displacement slider 307. Splitting end holes 301 are provided at both ends of the splitting horizontal arm 302.

[0046] In this embodiment, the pyrolysis crossarm 302 slides on the first slide bar 111 through the pyrolysis end hole 301.

[0047] In this embodiment, the top of the tension spring 110 is fixedly mounted on the pyrolysis cross arm 302, and the bottom of the tension spring 110 is fixedly mounted on the outer wall of the evaporation collection chamber 101.

[0048] In this embodiment, the pyrolysis roller 306 is disposed above the conveyor belt 121.

[0049] In this embodiment, the displacement slider 307 slides within the first vertical groove 119.

[0050] In this embodiment, the bottom end face of the pyrolysis crossarm 302 is pressed against the cam 305 by the tension spring 110.

[0051] In this embodiment, the bottom of the L-shaped vertical arm 304 is fixedly mounted on the outer wall of the evaporation collection chamber 101.

[0052] In a preferred embodiment, please refer to Figure 6 The tensioning arm assembly 400 includes a tensioning slider 401, a second sealing plate 403 is fixedly disposed on the inner side of the tensioning slider 401, a tensioning sliding hole 402 is provided on the tensioning slider 401, and a tensioning roller 404 is rotatably disposed on the second sealing plate 403.

[0053] In this embodiment, the tensioning slider 401 slides on the second slide rod 113 through the tensioning sliding hole 402.

[0054] In this embodiment, the top of the push spring 112 is fixedly disposed at the bottom of the tension slider 401, and the bottom of the push spring 112 is fixedly disposed on the outer wall of the evaporation collection chamber 101.

[0055] In this embodiment, the end shaft of the tension roller 404 slides within the second vertical groove 120.

[0056] In this embodiment, the tension roller 404 is disposed below the conveyor belt 121.

[0057] In a preferred embodiment, please refer to Figure 7 The auxiliary air supply heating component 500 includes a water heater base 504, on which a solar water heater 501, a water pump 502, a heat exchanger 503 and an air pump 505 are installed. The air pump 505 and the water pump 502 are located on both sides of the heat exchanger 503.

[0058] In this embodiment, the water heater base 504 is fixedly connected to the support base 108.

[0059] In this embodiment, the water pump 502 delivers hot water from the solar water heater 501 into the heat exchanger 503 via a pipe.

[0060] In this embodiment, the air pump 505 delivers external air into the heat exchanger 503 through a pipe.

[0061] In this embodiment, the air outlet duct of the heat exchanger 503 is connected to the air supply duct 115 via a pipe.

[0062] In this embodiment, the outlet pipe of the heat exchanger 503 is connected to the inlet pipe of the solar water heater 501 via a pipe.

[0063] A solar thermal concentrated water evaporation process includes the following steps:

[0064] S1. External concentrated water is sprayed onto the top of the conveyor belt 121 through the concentrated water supply pipe 105 and the concentrated water outlet flat nozzle 106, forming a concentrated water spray layer to be evaporated. The spray layer is evenly applied to the conveyor belt 121 by wiping the absorbent sponge 116. At the same time, the water in the spray layer is siphoned onto the lower end surface of the hydrophilic graphene polyvinyl alcohol composite film 201 by wiping the absorbent sponge 116, the absorbent sponge strip 103 and the absorbent sponge pad ring 104.

[0065] S2. Solar energy is converted into photothermal energy through the hydrophilic graphene polyvinyl alcohol composite film 201. The heat generated by the hydrophilic graphene polyvinyl alcohol composite film 201 evaporates the moisture on the water-absorbing sponge pad ring 104.

[0066] S3. Through the heat exchanger 503, the hot water in the solar water heater 501 and the external wind are exchanged for heat, and the external wind is heated. The heated air is sent into the air supply nozzle 102 through the air supply straight pipe 115. The air supply nozzle 102 sprays hot air onto the top of the conveyor belt 121, which accelerates the evaporation of the concentrated water spray layer on the top of the conveyor belt 121, so that the salt in the concentrated water is separated onto the conveyor belt 121.

[0067] S4. By vibrating the salt splitting arm assembly 300, the salt precipitated on the bottom belt of the conveyor belt 121 is broken down by vibration, so that the salt precipitated on the bottom belt of the conveyor belt 121 falls into the feeding bin 109, thereby collecting the salt.

[0068] The working principle of this invention is as follows: To address the issue of concentrated water transfer within the salt collection chamber assembly 100, the salt collection chamber assembly 100 includes an evaporation collection chamber 101. A first drive roller 117 and a second drive roller 118 are rotatably mounted at both ends inside the evaporation collection chamber 101. A conveyor belt 121 is fitted onto the first drive roller 117 and the second drive roller 118. An air supply nozzle 102, a concentrated water outlet nozzle 106, and a top chamber 114 are fixedly mounted on the top of the evaporation collection chamber 101. In actual use, external concentrated water is sprayed onto the top of the conveyor belt 121 through the concentrated water supply pipe 105 and the concentrated water outlet nozzle 106. At this time, the second drive roller 118 is driven by the first drive motor 107, and the second drive roller 118 drives the conveyor belt 121 to transfer within the evaporation collection chamber 101. Simultaneously, to achieve evaporation of the concentrated water during transfer, this invention… By wiping the top of the conveyor belt 121 with the absorbent sponge 116, the spray layer is evenly applied to the conveyor belt 121. Simultaneously, the absorbent sponge 116, absorbent sponge strip 103, and absorbent sponge pad ring 104 draw water from the spray layer onto the lower surface of the hydrophilic graphene-polyvinyl alcohol composite film 201. The hydrophilic graphene-polyvinyl alcohol composite film 201 then converts solar energy into photothermal energy. The heat generated by the alcohol composite film 201 evaporates the moisture on the absorbent sponge ring 104. That is, when the concentrated water evaporates, it is first sprayed into a spray layer and attached to the top of the conveyor belt 121. During the conveying process of the conveyor belt 121, it is evenly coated by wiping the absorbent sponge 116. The moisture in the concentrated water is transferred to the lower end face of the hydrophilic graphene polyvinyl alcohol composite film 201 by the siphon effect of wiping the absorbent sponge 116 and the absorbent sponge ring 104, thus realizing the rapid evaporation of the concentrated water.

[0069] To further ensure the evaporation effect of the concentrated water and to further utilize solar energy, an auxiliary air supply heating component 500 is provided at one end of the salt collection chamber assembly 100 of this invention. The auxiliary air supply heating component 500 heats the external air through heat exchange. In actual use, the hot water in the solar water heater 501 and the external air are exchanged through the heat exchanger 503, heating the external air. The heated air is then sent through the straight air supply pipe 115 into the flat air supply nozzle 102. The flat air supply nozzle 102 sprays hot air onto the top of the conveyor belt 121, accelerating the evaporation of the concentrated water spray layer at the top of the conveyor belt 121, thus ensuring the concentrated water... Salt is separated onto conveyor belt 121, thereby achieving further utilization of solar energy. Simultaneously, to ensure the light conversion efficiency of the hydrophilic graphene-polyvinyl alcohol composite film 201, the invention uses a second drive motor 203 to drive the central shaft 204 to rotate within the U-shaped frame 205. A third drive motor 209, drive gear 210, and driven gear 207 can drive the U-shaped frame 205 to rotate on the U-shaped bottom frame 208. In this way, the orientation angle of the hydrophilic graphene-polyvinyl alcohol composite film 201 can be dynamically adjusted, ensuring the solar energy conversion efficiency of the hydrophilic graphene-polyvinyl alcohol composite film 201.

[0070] To facilitate the stripping and collection of salt precipitated on conveyor belt 121, a salt splitting arm assembly 300 is vibratingly installed at the bottom of the salt collection chamber assembly 100 of this invention. The vibration of the salt splitting arm assembly 300 vibrates and splits the evaporated salt. Tensioning arm assemblies 400 are installed on both sides of the salt splitting arm assembly 300. Specifically, the splitting crossarm 302 slides on the first slide rod 111 through the splitting end hole 301. The top of the tension spring 110 is fixedly installed on the splitting crossarm 302, and the bottom of the tension spring 110 is fixedly installed on the outer wall of the evaporation collection chamber 101. The splitting roller 306 is installed on the conveyor belt. Above 121, the displacement slider 307 slides in the first vertical groove 119. The tension spring 110 tightens the cracking crossarm 302, and the bottom end of the cracking crossarm 302 abuts against the cam 305. In actual use, the fourth drive motor 303 drives the cam 305 to rotate, and the cam 305 continuously abuts against the cracking crossarm 302. At this time, the cracking crossarm 302 drives the cracking roller 306 to continuously vibrate and strike the conveyor belt 121. At this time, the salt layer precipitated on the conveyor belt 121 will crack and fall into the feed bin 109. In this way, the cracking, falling and collection of salt are achieved.

[0071] In another embodiment of the present invention, a dynamically tiltable reflector is provided around the hydrophilic graphene-polyvinyl alcohol composite film 201. This ensures the effectiveness of the hydrophilic graphene-polyvinyl alcohol composite film 201. Meanwhile, the solar water heater 501, water pump 502, heat exchanger 503, and air pump 505 mounted on the water heater base 504 are all known technologies and will not be described in detail. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solar thermal concentrated water evaporation device, comprising a salt collection chamber assembly (100), characterized in that: The salt collection chamber assembly (100) is equipped with a dynamic photothermal evaporation assembly (200) at the top. Concentrated water is transported within the salt collection chamber assembly (100). The concentrated water transported within the salt collection chamber assembly (100) is evaporated by the heating of the dynamic photothermal evaporation assembly (200). The salt collection chamber assembly (100) is equipped with a vibrating salt splitting arm assembly (300) at the bottom. The evaporated salt is vibrated and split by the vibration of the salt splitting arm assembly (300). Tensioning arm assemblies (400) are provided on both sides of the salt splitting arm assembly (300). An auxiliary air supply heating assembly (500) is provided at one end of the salt collection chamber assembly (100). The auxiliary air supply heating assembly (500) heats the external air through heat exchange. The salt collection chamber assembly (100) includes an evaporation collection chamber (101). A first drive roller (117) and a second drive roller (118) are rotatably mounted at both ends inside the evaporation collection chamber (101). A conveyor belt (121) is fitted onto the first drive roller (117) and the second drive roller (118). An air supply nozzle (102), a concentrated water outlet nozzle (106), and a top chamber (114) are fixedly mounted on the top of the evaporation collection chamber (101). 114) An absorbent sponge (116) is provided inside. The absorbent sponge (116) is provided with an absorbent sponge strip (103) and an absorbent sponge pad ring (104) on the top. A concentrated water outlet flat nozzle (106) is provided with a concentrated water supply pipe (105). An air supply flat nozzle (102) is provided with an air supply straight pipe (115). A first drive motor (107), a first vertical groove (119) and a second vertical groove (120) are provided on one side of the evaporation collection chamber (101). The dynamic photothermal evaporation assembly (200) includes a ring frame (202), on the top of which is a hydrophilic graphene polyvinyl alcohol composite film (201), and the bottom of the ring frame (202) is rotatably mounted on a U-shaped frame (205) via a central shaft (204) and bearings. A second drive motor (203) is fixedly mounted on one end of the U-shaped frame (205), and the bottom of the U-shaped frame (205) is rotatably mounted on a U-shaped bottom end frame (208) via a bottom shaft (206) and bearings. The bottom of the U-shaped bottom frame (208) is fixedly installed on the top of the top chamber (114), the water-absorbing sponge pad ring (104) is installed on the bottom surface of the hydrophilic graphene polyvinyl alcohol composite film (201), the concentrated water delivery pipe (105) is connected to the external concentrated water delivery device through the pipe, and the bottom of the wiping water-absorbing sponge (116) is installed on the top of the conveyor belt (121). The external concentrated water is sprayed onto the top of the conveyor belt (121) through the concentrated water supply pipe (105) and the concentrated water outlet flat nozzle (106) to form a concentrated water spray layer to be evaporated. The spray layer is evenly applied to the conveyor belt (121) by wiping the water-absorbing sponge (116). At the same time, the water in the spray layer is siphoned onto the lower end surface of the hydrophilic graphene polyvinyl alcohol composite film (201) by wiping the water-absorbing sponge (116), water-absorbing sponge strip (103) and water-absorbing sponge pad ring (104).

2. The solar thermal concentrated water evaporation device according to claim 1, characterized in that: The evaporation collection chamber (101) is provided with a first drive motor (107), a first vertical groove (119) and a second vertical groove (120) on one side. A first slide rod (111) is fixedly provided on the outside of the first vertical groove (119), and a tension spring (110) is sleeved on the first slide rod (111). A second slide rod (113) is fixedly provided on the outside of the second vertical groove (120), and a push spring (112) is sleeved on the second slide rod (113). A feeding bin (109) is fixedly provided at the bottom of the evaporation collection chamber (101), and a support base (108) is provided on one side of the feeding bin (109).

3. The solar thermal concentrated water evaporation device according to claim 1, characterized in that: A driven gear (207) is fixedly installed on the outer wall of the bottom shaft rod (206), and a third drive motor (209) is fixedly installed on one side of the U-shaped bottom end frame (208). A drive gear (210) is installed on the output shaft of the third drive motor (209), and the drive gear (210) meshes with the driven gear (207).

4. The solar thermal concentrated water evaporation device according to claim 1, characterized in that: The salt splitting arm assembly (300) includes a splitting horizontal arm (302) and an L-shaped vertical arm (304). A fourth drive motor (303) is provided on the L-shaped vertical arm (304). A cam (305) is provided on the output shaft of the fourth drive motor (303). A first sealing plate (308) and a displacement slider (307) are fixedly provided on the inner side of the splitting horizontal arm (302). A splitting roller (306) is rotatably provided on the inner side of the displacement slider (307). Splitting end holes (301) are provided at both ends of the splitting horizontal arm (302).

5. The solar thermal concentrated water evaporation device according to claim 1, characterized in that: The tensioning arm assembly (400) includes a tensioning slider (401), a second sealing plate (403) is fixedly provided on the inner side of the tensioning slider (401), a tensioning sliding hole (402) is provided on the tensioning slider (401), and a tensioning roller (404) is rotatably provided on the second sealing plate (403).

6. The solar thermal concentrated water evaporation device according to claim 1, characterized in that: The auxiliary air supply heating assembly (500) includes a water heater base (504), on which a solar water heater (501), a water pump (502), a heat exchanger (503) and an air pump (505) are provided. The air pump (505) and the water pump (502) are located on both sides of the heat exchanger (503).

7. A solar thermal concentrated water evaporation device according to claim 4, characterized in that: A first slide rod (111) is fixedly installed on the outside of the first vertical groove (119), and a tension spring (110) is sleeved on the first slide rod (111). A second slide rod (113) is fixedly installed on the outside of the second vertical groove (120), and a push spring (112) is sleeved on the second slide rod (113). The pyrolysis crossarm (302) slides on the first slide rod (111) through the pyrolysis end hole (301). The top of the tension spring (110) is fixedly installed on the pyrolysis crossarm (302), and the bottom of the tension spring (110) is fixedly installed on the outer wall of the evaporation collection chamber (101). The pyrolysis roller (306) is installed above the conveyor belt (121). The displacement slider (307) slides in the first vertical groove (119). The pyrolysis crossarm (302) is tightened by the tension spring (110), and the bottom end face of the pyrolysis crossarm (302) abuts against the cam (305). The tensioning arm assembly (400) includes a tensioning slider (401), a second sealing plate (403) is fixedly disposed on the inner side of the tensioning slider (401), a tensioning sliding hole (402) is opened on the tensioning slider (401), and a tensioning roller (404) is rotatably disposed on the second sealing plate (403); the tensioning slider (401) slides on the second slide rod (113) through the tensioning sliding hole (402), the top of the push spring (112) is fixedly disposed on the bottom of the tensioning slider (401), and the bottom of the push spring (112) is fixedly disposed on the outer wall of the evaporation collection chamber (101), the end shaft of the tensioning roller (404) slides in the second vertical groove (120), and the tensioning roller (404) is disposed below the conveyor belt (121), and the bottom of the L-shaped vertical arm (304) is fixedly disposed on the outer wall of the evaporation collection chamber (101).

8. A solar thermal concentrated water evaporation device according to claim 6, characterized in that: The water heater base (504) is fixedly connected to the support base (108), and the support base (108) is located on one side of the bottom feed hopper (109) of the evaporation collection chamber (101); the water pump (502) sends the hot water in the solar water heater (501) into the heat exchanger (503) through the pipe; the air pump (505) sends the external air into the heat exchanger (503) through the pipe; the air outlet pipe of the heat exchanger (503) is connected to the air supply straight pipe (115) through the pipe; and the water outlet pipe of the heat exchanger (503) is connected to the water inlet pipe of the solar water heater (501) through the pipe.

9. A solar thermal concentrated water evaporation process, employing a solar thermal concentrated water evaporation device as described in any one of claims 1-8, characterized in that: Includes the following steps: S1. External concentrated water is sprayed onto the top of the conveyor belt (121) through the concentrated water supply pipe (105) and the concentrated water outlet flat nozzle (106) to form a concentrated water spray layer to be evaporated. The spray layer is evenly applied to the conveyor belt (121) by wiping the water-absorbing sponge (116). At the same time, the water in the spray layer is siphoned onto the lower end surface of the hydrophilic graphene polyvinyl alcohol composite film (201) by wiping the water-absorbing sponge (116), water-absorbing sponge strip (103) and water-absorbing sponge pad ring (104). S2. Solar energy is converted into photothermal energy through the hydrophilic graphene polyvinyl alcohol composite film (201). The heat generated by the hydrophilic graphene polyvinyl alcohol composite film (201) evaporates the water on the water-absorbing sponge pad ring (104). S3. Through the heat exchanger (503), the hot water in the solar water heater (501) and the external wind are exchanged for heat, and the external wind is heated. The heated air is sent into the air supply nozzle (102) through the air supply straight pipe (115). The air supply nozzle (102) sprays hot air onto the top of the conveyor belt (121) to accelerate the evaporation of the concentrated water spray layer on the top of the conveyor belt (121), so that the salt in the concentrated water is separated onto the conveyor belt (121). S4. By vibrating the salt splitting arm assembly (300), the salt precipitated on the bottom belt of the conveyor belt (121) is vibrated and split, so that the salt precipitated on the bottom belt of the conveyor belt (121) falls into the feed bin (109) to collect the salt.

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